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    <h1>第一张网页</h1>
    <h1>hello world</h1>
    <!-- src会向服务器再一次发起请求 -->
    <img src="/image/1.png" alt="这是一个qq图标, wight = "100" height="100">
    <img src="/image/2.png" alt="这是一只蝴蝶,  wight = "100" height="100""> 
    <!-- <a href="http://119.29.209.170:8888/a/b/hello.html">访问第二个网页</a>
    <a href="http://119.29.209.170:8888/x/y/world.html">访问第三个网页</a> -->
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